Draft-rigging yoke.



DRAF? RiGGiNG YOKE.

APPMCANQN FILED AUG.20.19:1.

Patented Dem 3, MHS.

'wherein is employed a jUivITED STATES ParsifalI ori-Fien.

JOHN F. oCoNNon, oF cxtreme,

AND JOHN R. MITCHELL, OF EVANSTON, ILLINOIS, l ASSIGNORS T0 WILLIAM H.MIN ER, 0F

CHAZY, NEW YORK.

DRAFT-RIGGING YOKE.

Applicationfled August 20, 1917. Serial No. 187,212.

To all 11i/10m. t may concern:

Be it known that we, JOHN F. OCoNNon, residing at Chicago, Cook county,Illinois, and JOHN R. MITCHELL, residing at Evanston, Cook county,Illinois, both citizens of the United States, have invented a certainnew and useful Improvement in Draft-Rigging Yokes, of which thefollowing is a full, clear, concise, and exact description, referencebeing had to the accompanying drawings, forming a part of thisspecification.

his invention relates to improvements in draft rigging yokes.

The object of the invention is to provide a yoke suitable for railwaydraft riggin and two-part hea( suitable for connection with an ordinaryU- shaped yoke strap of the rivet type.

In the drawings forming part of this specication, Figure 1 is a partvertical, longitudinal section, part side elevation of a draw bary andyoke showing our improvements in connection therewith. Fig. 2 is ahorizontal, sectional view, taken on the line 2-2 of Fig. l. Fig. B'is avertical, sectional view, taken on the line 3-3 of Fig. 1. Fig. 4 is aview corresponding to Fig. 1, but illustrating another embodiment of theinvention. And Fig. 5 is a vertical, sectional view, taken substantiallyon-the line 5-5 of Fig. 4.

Referring first to the construction shown in Figs. l, 2 and 3, Adesignates a standard draw bar. B a U-shaped wrought iron lvoke ,strapof the ordinary rivet type, and C-C two members which together form ahood or head to form the intermediate connection hetween the draw harand the strap.

The strap B isof the usual U-,Shape having an upper arm 10, lower arm11, rear connecting portion 12, filler block 13 and inturned gibs 14-1fiat the front ends of the arms l0 and 1l. Each of the arms-10 and 11 isprovided with rivet holes 15--15 and it is obvious that the strap B maybe an old strap or a new one.

The members C-C each cal Side wall 16, an upper horizontally extendingarm 17 and a lower horizontally extending arm 18. The members C-C areduplicates and are arranged in the manner shown most clearly in Figs. 1and 2. The lower arm 18 of one member C is provided with an upturncd gibat its edge, as indicated at 19, and the upper arm of the other -rivets21`21 are extended the usual standardly spaced comprise a vertimnler Cis provided with a corresponding g1 The upper and lower horizontal armsof the members C-C are also provided with standazdly spaced rivetreceivin holes 20-20 and the members C--C and t 1e strap are assembledwith the ends of e arms of the .strap interposed between correspondingpairs ofthe horizontal arms 17 and 18 of the members C. When thusassembled, short through the alined rivet. holes 17 and 20, as shown inFig.

1 o connect the head formed by the members C-C to the draw bar, thevertical walls 16 of said members are slotted, as indicated at 22, toreceive a coupler key 23 which is eX- tended through a correspondingslot in the draw bar.

With the arrangement above described, it is apparent that old yokestraps may be em ployed with consequent saving to the users and byconnectin the members C-C with the draw bar'in t e manner specified, allof the rivets 21-21 will be placed under double` shear, thusell'ectively increasing the strength of the yoke connectionf Where it isdesired to form a connection with a draw bar not having a coupler keyslot, the construction shown 1n Figs. 4 and 5 is employed. In thisconstruction, the members C/"C are similar to the members C-C exceptthat the upper\I arm 117 of one of tbe members and the lower arm 118 ofthe other of said members is provided with a transverse gib 114 tothereby form a shouldered engagement with the draw bar shoulders 30-30.In this construction, the usual gibs found on the ends of the yoke strapB are either cut 0d' or omitted in new constructions and elongatedrivets 121-121 are extended through the'members C', the arms of the yokeB and through the usual rivetholes in the draw har butt. In thisarrangement also `it will he apparent that the rivets 121 are placedunder double shear due to the fact that each of the members C hasshouldcrcd engagement with the draw bar.

We claim:

1. In a yoke, the combination with a U- sha; `d strap having standardlylocated rivet holes in the arms thereof, of a draw bar, a headcomprising two like members each having a vertical portion and upper andlower' horizontally extending arms, the horiaon- Patented Dee. 3, 1m e.

tally extending arms of said meinherbl being overlapped andthe ends ofthe yoke' strap arms hein@r interposed therebetween, said horizontalarms of said members having holes in alinernent with the rivet holes ofthe strap, means extending through said holes to connect Said head andstrap, and means for operatively connecting both of said ineinbers andthe draw har under draft whereby to place Said connecting means betweenthe head and strap under double shear.

2. In a yoke, the combination with a U- shaped Strap having standarfllylocated rivet holes in the arms thereof, of a head, said head comprisingtwo like members each having a vertieal portion and upper and lowerhorizontally extending arms, Said horizontally extending arms of saidmembers being overlapped and havin;r the ends of the strap armSinterposed therebetween, said arms of said members having holes inalineinent with said rivet holeel of the strap, upper and lower setseli' short rivets disposed within Said holes and rigidly connecting thestrap and said members, the vertical portions* of said meinbershavingslots therein adapted te receive a coupler key for attachment to adraw bar.

In witness that we elaiin the foregoing, we

have hereunto subscribed our naines;v this 15 JOHN F. OCONNOR. J OHN`vR. MITCHELL.

day of Aug., A.

